Over the years I've accumulated a pile of earrings, only rarely paying more than $10 or $15 for a pair. And I've decided that they make great souvenirs, at least if you have pierced ears, for the following reasons:

They're cheap. I've paid as little as $2 for a pair.

They're ubiquitous. Where are there not vendors selling earrings?

People ask where you got them, and then you get to talk about vacation.

If you lose them, it's an excuse to go back for more.

Here are some of mine:

Clockwise from top: Turkey, Spain, Mexico, Russia, Arizona, Hawaii, Costa Rica. The leaf-shaped earrings at the beginning of this entry are from Finland.